Nov 07, 2013 - 08:21 PM
The best way to get rid of fungus gnats, or peat flies, is to make sure that the soil is drained well and not standing in water. Next, use any granular insecticide such as Bifen, or Surrender granules and apply directly to the soil.
Fungus gnats will burrow several inches down into the soil to lay their eggs, so spraying the plant or soil surface won't work. Granules that give an extended release will work.
Also, using CB-80, fog the area or room where you find them. It kills the adults on contact.
Catchmaster Gold Stick fly traps work well to capture them.
Hope this helps.
Nov 07, 2013 - 08:45 PM
Thank you Ron for the suggestion. I am going to pick some up tomorrow. Do you happen to know how long it will take for the product to get rid of all of the flies and their eggs ? Also, I just want to make sure that the products you suggested won't cause any harm to my house plants ? I have had them all for many years and I would hate to see anything happen to them.
Ron, I just read the product label online, it doesn't say anything about it treating fungus knats ? I want to make sure I get the correct product. I don't have much money to spend on this but I would also like to make sure that what I do get is going to do the job.
Nov 08, 2013 - 06:14 AM
Some of the recommendations that I make are just from experience and things that work. I don't think you will find any granules with a label for indoor use in houseplants, but it works.
If you want something more specific, then try using the Temprid Ready to Use Spray. You can just spray the soil until wet. Don't spray the leaves of the plants, only the soil. Although this application is also not directly mentioned on the label, it will work and should not hurt the plants.